Wrap stripe stop motion



March 18, 1952 w, c, TUCKER 2,589,646

WRAP STRIPE STOP MOTION Filed Oct. 2, 1950 5 Sheets-Sheet 1 26 2.5 1 2 v 8 30 w 0 32 fi 32 39 fill W 39 27 27 1 .n m/l Ir J 3! 'Hllll ll gi II I w 33 w 43 43 Z3 24 as W 40 40 H0 2 r 5 1o i 1; K ,sz| 4 :50 J

WILL/AM C. Tue/(ER.

INVENTOR.

2& BY WM ATTORNEYS.

W. C. TUCKER WRAP STRIPE STOP MOTION March 18, 1952 3 Sheets-Sheet 2 Filed Oct. 2, 1950 WILLIAM C. TUCKER,

INVENTOR.

ATTORNEYS.

March 18, 1952 w c, TUCKER 2,589,646

WRAP STRIPE STOP MOTION r W W 5 5s 50 54 9 -zz H a0 INVENTORI 34 [ML/AM C. Eur/5R.

ATTORNEYS.

Patented Mar. 18, 1952 WRAP STRIPE STOP MOTION William 0. Tucker, High Point,N. 0., assignor of one-third to Julia Austin Tucker and one-third to Sumter Marion Austin, both of High Point,

Application October 2, 1950, Serial No. 188,035

9 Claims. (01. 66-164) This invention relates to circular knitting ma chines and more especially to an improved stop motion adapted to be associated with a wrap stripe attachment on a circular knitting machine of the type known as the Scott and Williams H. H. or PW machine.

In circular knitting machines of the type described, there is provided a rotating wrap head having a-plurality of wrap fingers thereon which are adapted to move adjacent the needle cylinder at predetermined intervals to wrap a wrap thread around certain needles for producing Wrap stripes ina knitted article. This rotating'head moves in timed relation to the needle cylinder and has a plurality of circularly spaced stobs thereon, each of which supports a tube having wrap yarn thereon and which yarn is drawn from the-tube upwardly through conventional tension apparatus and is then directed to the conventional wrap fingers. This conventional tension means usually has associated therewith a mechanism for stopping the knitting machine in the event any of the strands of the yarns are parted in their path from the tube of yarn to the corresponding wrap finger.

However, upon all of the yarn being withdrawn from any one of the tubes, the tension means would be relaxed and would again stop the machine, and in this event, the yarn frequently is withdrawn from the conventional tension means with the result that the yarn would have to be rethreaded through the tension means upon replacing the empty tube with a filled tube of yarn.

Although, some attempts have been made to provide a stop motion control for stopping the knitting machine upon the yarn from a tube'being exhausted and prior to the yarn being drawn through the tension means, such means have re-- quired a considerable number of parts and one particular type of such means has required that the tube be provided with an opening in .one

side thereof to permit the,extension of an arm ventional' stop motion of the knitting machine.

wrap head of a knitting machine comprising clamping means in the form of a thread clamp pivotally supported on the table of the wrap head immediately adjacent each of the stobs which support the packages or tubes of yarn -;and to which the tail of the yarn is clampingly connected. This pivoted clamping means has,

stop means associated therewith which is automatically released upon the last few turns 01 yarn on the corresponding tube being withdrawn therefrom and which causes the clamping means tobe pivoted or elevated by the pull of the yarn with the result that the stop means is released to engage a suitable mechanism for actuating the stop motion of the knitting machine.

There are two forms of the invention shown in the drawings, the pivoted clamping means of the original form of the invention being pivotally supported in a block having a projection thereon and which is secured in the table or plate of the wrap head by any suitable means, such as a pressed fit. In the modified form of the invention, the stob which is threadably embedded in the table of the wrap head has a shoulder thereon which clampingly secures a support for the pivoted yarn clamp to the table,

this support also containing the means for actuating the stop motion of the knitting machine, upon being released by the yarn clamping means. In using the modified or second form of the invention, it is not necessary to drill holes in the table for the reception of the releasable means for actuating the conventional stop motion of the knitting machine or otherwise modify the conventional knitting machine.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings in which- Figure 1 is an elevation of the upper part of a wrap stripe section of a circular knitting machine with portions omitted and broken away and showing the improved wrap yarn control stop motion actuating means in association therewith;

' Figure 2 is an enlarged vertical sectional view taken substantially along the line 2-2 in Figure 1 and showing the means for effecting operation of the conventional stop motion of a knitting machine upon the improved stop motion actuating means being rendered operable;

Figure 3 is an enlarged fragmentary plan view looking down substantially along the line 3-3 in Figure 1 and showing the original form of the invention with one unit thereof in operative 3 position, the remaining units being shown in inoperative position and the tubes of yarn being omitted for purposes of clarity;

Figure 4 is a side elevation of the intermediate means for effecting operation of the conventional stop motion of the knitting machine gresponsive to the releasable actuating means"- of the present inventioni Figure 5 is a vertical sectional view taken substantially along the line 55 in Figure 4;

Figure 6 is an enlarged fragmentary vertical f sectional view taken substantially along the line 66 in Figure 3 and showing "the releasable? actuating plunger in operative pcsitiontowhich cured around the periphery thereof, only two of which are shown in the drawings. Each of the brackets 24 has pivotally mounted therein a yarn tension take-up lever 25 having a hook in its free 5 end over which the wrap yarn W is adapted to be passed. The outer endof each of the tension leversf2f5 has a hook portionfad'aptedto be hooked into an" upwardly projecting member 26 secured to a tension disk 2! slidably mounted on a post :0' 30' and is normally urged downwardly by a com- 7 pression'spring 3i surrounding said post, the tension in the compression spring being adjusted by'a suitable thumb nut 32.

A'fixejd tension disk 33 is suitably secured to position it is moved by centrifugal force upon each of the brackets 24 and against which the being released through movement of the yarn clamping means;

Figure '7 is a fragmentary vertical sectional view taken substantially along the line 'l--'T in movable tension disk 2'! is urged by the spring 3|. The tension levers 25 and the associated parts heretofore described may be of the type substantially as shown in United States Patent Figure 6 but showing the plunger in an inopera- N0. 2,430,633of November 11, 194;7, and also inthemanner in which the'restrictedthreaded por tion of the 'stob or yarn tube holder limits put ward movement of the corresponding stop" 'mo tion actuating'plunger;

Figure .9 is a fragmentaryElevation substantially along'the line 9-9 in Figure B showing the yarn clamping"means in""ele i or 'operative' position, in' which position "it is dis: posedupon the yarn from the cone ortubeb'eing-f exhausted;

Figure 10 is a fragmentary top DIEJiViGWSjiIlif-f" form of; the invention'associated' therewith;

Figure 11 is'an' enlarged fragmentarywerticai f sectionalview taken'substantially alon'g'the line H" l tin Figure 10;'

insection taken substantially along thefline" l3 -l3 in Figure 10 and showing the' yarn clamping meansQin an elevated or operative position,

this-view being-similar to Figure 9. Referring 'more specifically to the drawings-f the numerallfl broadly designates a bracketrisclude fafmember pivoted in each of the brackets 24 andhaving an outwardly and upwardly projectiiig" portion 38 and an inwardly and down: yvaidly projecting'hocked portion or member 39; 25 Each of'the stobs or cone 'holders2i is adapted" to support a suitable cone'or tube of wrap'yarn" indicated' at 4%. Wrap' yarn passes upwardly fromjeach of the cones 40 and between the cor-i responding 'tvvo tension disks '21 and 3| and d- 'S0""through a suitable opening in the bracket'24 and through the hook member'39 and thenbeneath a i'in gfM seouredpn suitable uprising jpostsd i rising from the'table-23. Then the wrap yarnjW passes'through the hook on the ireeendoteadh" lar toFigure 3 but showing fa modified f o fise'cond 3 l 1 Q D d S eve d extends l I I wardly through suitable'tubes or conduits '44 whicheigtend through the housing i4 and only the lower ends of which are visible'in Figure l. g I 7 W jlhe'wrap yarn then extends from the lower ends Figure 12 is'an enlarged fragmentary"verticah"of thejtubes' ld to the correspondingwrap yarn fingerSfIB Eiach of the yarn tension levers 25 is normailyi urged upwardly against the tension of the yarn-w by'means of a tension spring ma nected 'thereto' and having its upper end con i nected to a spring anchor lfi'securedon the corresponding bracket 24. The partsheretofore de-' scribed are usual parts of a knitting machine of the f'type described having a wrap *stripe mechanism associatedtherewith and it is with ing upwardly from the body portion of a knitting athes'eparts that the present invention is adapted" machine'of the type described "and which 'has leg portions H and [2 which support'a platform I3. "On this bracket" I8 is 'rotatablymounted .a housing l4 having'on thelower end'thereof' a plurality of radially 'm'ovable wrap yarn fingers performvthe" functions of the'apparatu 'heret l5 which are adapted 'to be moved by "certain; mechanisms, not shown,; but fully shown in Pat-- ents No. 1,853,020 or No. 1,906,204.

These radially movablewrapjyarn fingers are provided for the well known purposecf deposite .J.' a 6 The housing I l has a lower table 20 provided wim aplura-lity of cone-holders, tube holdersor stops 2| which are shown in Figures '6 and' 8,

and each of which is provided with a ieliliQiQ threaded portion 22 on theflower' endfthereof V suitably embedded in the table "20; These fs tobs 2| are arranged in a circle on the' table zoana in spaced relation to each other; ,i

flhe s s M a h s i ipb e l 3in}? vided with a plurality of brackets 24'suitably'se The housing I4 is mounted forrotation 'ei. ."des r b d. .i e. ar cula p ra us; deed" bein sho n ,b w y "of i us a on;.qn ii, puringfoperationoj the machine; upon the wrapfyarn being severedfonfeither side of th yarn f tension apparatus of which the tensi levers'25 area part, it is evident that the member" 39 will swing upwardly resulting in the outer pore tion38' thereof being swungtojvassume 'sub s't'antially "a horizontal position. Suitable means, not". shown in the present drawings but being clearlyjf shown in thejfUnited States Patents Nos. 2,430,633

and 1 412,648. are usually provided which. are engag'e'able'by the portion ssjor the memberjss for actuating the conventional "stop v motion of the machine, this stop motion banger the typ e" such as is shown in'United'States Patent Noj The original o first for nof tneinveiition is 1y designated at 5|]. in the form of a pivoted member which may also be termed a pivoted latch. The yarn tail clamp 50 has an outwardly projecting tail portion or blade 5| which is rounded at the free end thereof, as at 52, so that the tail of the yarn W (Figure -9) may be slid alongthe portion 52 against the upper. surface ofv the blade 5| be clampingly engaged by. a leaf .spring memberv 53 suitably secured at its. end remote from the..free end of. the blade 5| to a second portion 54 of the blade 5|. The leafspring member53 may be secured at one end thereof to the blade 5| as by riveting, soldering Or in any other desired manner.

'Ihe yarn tail clamping member 50 has an upturned portion or projection 55 thereon which is integral with the enlarged or second portion 54 and which is bent outwardly to form a lip 56. .This lip 56 is disposed in the bifurcated upper. end of a yoke member or pivot block 51 and is. pivotally mounted therein, as at 60. The yoke block.5| has a reducedportion 6|, preferably circular in cross-section, extending downwardly therefrom and which is secured in the lower table 20 by any suitable means, such as a pressed,

fit. Y

A latch projection 62 extends from the lowersurface of the blade 5| of the yarn tailclamp-v ing member 50 and is flattened at oneside thereof and at an angle, as at 63, for purposes to be. later described. When the latch is in a lowered or inoperative position, the projection 62. thereon enters a corresponding, cavity 64 in. the table 20, the walls of this cavity being tapered, as at 65,.at the upper edge. so as to tend to lead the projection 62 thereinto as the yarn tail clamping. member 50 is lowered, by gravity, into engagement'with the upper surface of the table 29. Now, the table 29 is provided with a plurality ofv radially extending bores 68, there being one of these bores associated with each of the stobs 2 l. and as is most clearly shown in Figuresfi, 7 and 8. These bores 68 are so positioned that upon the reduced threaded end 22 of the stob 2| be-. ing embedded in the table 20, the reduced portion 22 of the stob 2| will be partially disposed,

within the radially extending bore 68. Mounted for radial sliding movement in each of the bores 68v is a. stop motion actuating plunger 69 which is-flattened intermediate its ends, as. at for a part of the length of the plunger 69 and this flattened portion 10 engages the adjacent edge of the reduced portion 22 of the stob 2| thus preventing rotation of the plunger 69 in the bore 68 and alsolimiting inward and outward movement of the plunger 69.

I The plunger 69 is preferably loosely mounted in the corresponding bore 68 so that'centrifugal force transmitted to the plunger 69 through ro-' tation' of the table 20 will tend to throw the plunger 69 out of the bore 68 and, in whichinstance, the flattened portion 10 on the plunger 69, through engagement with the reduced threaded portion 22 of the corresponding stob 2|, limits outward movement of the plunger 69.

i-The plunger 69 has an angularly-iextending' notch-1| therein, the angularity of which is such a-stitoccoincide with the angularity of the surface 63 on the latch projection 62. The width of. the notch 1| is such that the latch projection 62 will loosely fittwithin the confines of the. notch :I when the plunger assumes a position where .zth'eiouter end thereof is flush with the. peripheral edge of'the table 20. 7

operation; as 'eachxtubefofiyarn '40 is placed 6. on a corresponding one of the stobs or yarn tube holders 2|, the tail of the yarn, that is, the end of the yarn which will last be removed from the tube 40, is inserted between the leaf spring.

member 53 and thefblade 5| of the yarn tail clamping member 50 while the yarn tail clamp-.

ing member 50 is in a horizontal lowered or inoperative position and the latch projection 62 thereof is projecting into the cavity 64 and is in engagement with the-notch H in the corresponding plunger 69.

- Now, during normal operation of the wrap stripe mechanism upon the severage of any of the yarns from the corresponding tube 40, the

conventional tension apparatus, of which the tension lever is a part, will operate to stop the-knitting machine in a conventional manner.

However, in order that the tension in the yarn W need not necessarily be relaxed in order to stop the machine upon the yarn on any one of the bobbins or tubes being exhausted and to thereby prevent the yarn from being drawn through the tension apparatus which would normally necessitate its being rethreaded therethrough uponthe installation of a succeeding tube of yarn, the clamping means is provided.

Upon the yarn of the corresponding tube 40 being exhausted, the clamping means 50 will be raised from substantially the position shown in Figures 1, 6 and 7 to the position shown in Fig-1 ure 9. It is evident that this will "release the plunger H from the latch projection 62 on the corresponding yarn tail clamping member 50 and the plunger69 will then be thrown outwardly to assume substantially the position shown in Figure 6 and with the result that the plunger will be so positioned as to engage a suitable means for effecting operation of the conventional stop motion of the loom such as the belt shifting apparatusshown in the United States Patent No. 2,389,688.

In the present instance, there is provided an improved intermediate. stop motion actuating. means broadly designated at 88 which comprises a plate 8| suitably secured to the platform I3, as by screws 82. actuating means includes an arm 83 which is mounted in a mannertobe presently described," so as to be moved by "the plunger 69 which "'is projected outwardly relative to the periphery of the table 2|] which thuscauses a Bowden wire 84 to move in a predetermined direction for operating the conventional stop motion of the knitting auxiliary plunger 9| has a capmem-ber 92 suitably secured thereon, as by being threadably mounted thereon and which is engageable by an operator for pushing the auxiliary plunger 9| inwardly or from right to left in Figure 2 for purposes to be later described.

The-auxiliary plunger 9| has an enlarged p'iston portion 93 integral therewith which is mount-;

ed for longitudinal sliding movement in the tubu-.

This intermediate stop motion.

lanmember. 85' and the lettt-hand end: thereof in FfieurezZ. is...engag,ed.by a compression spring 94.

The: other. end: of the compressionspring. 94., en.- gages-a stop member: 95which is. fixedly secured. in the tubular member. 85: adj acent. the. left-hand.

endthereof in Figure -2 as: by ascrews'l penetrat ing; the Wall of the: tubular member 85 and. bearing againstthe stop'member95. Thisstop mem? ber 95;';iS.Slidab1y penetrated by-the plunger 9|",

the enlarged. piston portion 93 being. disposed in.--- termediate the ends of the plunger: 9L. Theend' or the auxiliary plunger 9| remote from the. end to whichzthe head member 92. is. connected isreduced, as. at 96, for the reception of theBowden wire 84 heretofore described. The. housing; of! the- Bowden. wire. is clamping-1y securedin. a clamp ing,member 91 whichissuitably secured, asby a screw 98, to the upper surface of the plate 8 I.

Itwill-be observed in Figure. 3 that one-end-of astud I is fixedly secured. as-by apressed fit,

inlthe tubular member 85 and extends outwardly fromone side thereof. This stud I00 has oneenjd oi-a detent support plate. IOI loosely mounted thereon, this plate IOI extendingin parallel relationto the. tubular member 85. A compression spring I02 surrounds thestucl I00 and urges the:

plate 0| against the tubularmember 85 at.; the stud. I00. A pair of lock nuts I03 are threadably mountedv on the stud. I00. which. serve to confine Thisscrew I06 islocked in the desired adjusted position by a lock nut I0? threadably mounted thereon and is so positioned that the free end thereof will slidably engagezthe piston rod or aux,- iliary'plunger 9|. Thespring'94 (Figure'z). normally urges the enlarged piston portion 93 of the.-

auxiliary plunger 9| against the detent I05. H

Now, referring to Figures 2 and 3,,it will beg-observed that the tubular member 85 has ashoulder screw I I0 threadably embedded in the uppersurface thereof on which. acam III is oscillatablymounted, this cam III being shown as substantially octangular in Figure 3. The fingertI-l heretofore described, which is adapted to beengaged by any one of the stop motion actuating plungers 69 whichmay have been released byfthe latchmember 50, is threadablyv embedded inlthe cam. member I II and extends radially therefrom.

In operation, the cam I I I is normally disposed in the position shown in Figure 3. However, upon the free end of the finger 83 being, engaged by any one of the plungers 69, rotation will be imparted to" the cam II I causing the same to move the detent plate III outwardly and, of course, this'will cause the detent I06 to move out of engagement with the enlarged portion 93 of the auxiliary plunger 9| thus permitting the compression spring 94 tomove the plunger 9I- from left to right in Figures 2 and 4 or downwardly in Figure 3. It is evident that this would cause the- Bowden wire 84 to move in a like direction to thus. actuate the conventional stop motion, notshown,

which is clearly shown in said Ruth Patent No. 2,389,688 and the Fogleman. et a1; Patent; No. 2,430,633; A new bobbimmay then beplaced; on

thestob 2 I and thexyarnz-thereon. may be com- This leaf" nectedtothe-tail. of the yarn-W: and itwill not. be necessary torethread the yarn.

Due to. the fact that: the framework. of many; knitting machines: varies, the intermediate; stop.- motion actuating: device 80 may be placedina.

diflerent. position relative. to the; table Ml. and, therefore; the; cam; I I I is; so. formed that; it may be: moved in eitherv direction. and. will still move;

the detent. I 06v out of. engagement; with. theen larged port-ion; 93 of the: auxiliary: plunger: 91 (Eigure2) It: is. evident; than-upon. the knitting. machine;

beingst'oppedinthe manner-heretofore described, the bobbin or cone of yarn. 40*may be replaced. and the. correspondingplunger 69 may: bemoved inwardly: so thatits: outer endsiare; flush withthe;

periphery: of. the table; Also, itis necessarythat. the auxiliary or intermediate. stop motion; actuating device. 80 be reset so asto be conditioned.

am for arepeatoperation. In thisieventit.ismerely necessary. for. an operator to press. the member. 92 to cause movement of. the plunger 9| inwardly or. from. right toleft in the tubulanmember'ti' (Figure 2) until the enlarged portion 93lhas. moved beyondv the. detent I06.

releasingthe plunger 92,-the detent IOIi'will again engagetheright-hand end of the enlarged portion 93 of: the auxiliaryplunger' 9I under pres-- sure: of the compression spring: 94.

Second or modified form Referring to Figures 10, 11,.12 and. 13, theredsn:

shown asecond or modified formof the invert.-

tion which functions in substantially the same.

manner as the. originalv form". of: the invention.

shown in. Figures. 1 to 9. However, inzusing'the modified form of theinvention, itisznotnecessaryence. characters will also apply. to i this: device. in association with the modified form of the; in

vention.

The modified form of centrifugally' operable stopvmotion actuating device'comprises a bracket or; support broadly'designated 'at I20 which, for

purposes; ofv simplicity of manufacture. is shown as being formed of sheetmetal. It. isto be under stood however that. the;bracket I2 0: may be: machined of a solid piece of material orcast or. made;

in any other desired mannerandof anyz desiredl.

workable material. The bracket ..I20"comprises: a planar. portion I2I which-is relatively-thin: and. which has an adjustmentslot, I22 therein. which is. adapted to bepenetratedzby the reduced portion 22 of the corresponding stob or-yarn cone. holderv 2i. The shoulder formed at the junctureof the reduced. threaded portion. 22 and the; enlarged portion: of the stob 2'I clampingly secures the: plate I2I' of the bracket. I20 to the upperrsurfaceof the table 20.

The plate I2I has atubular portion. I23 formed therein; in which an: enlarged portion I 20"of a;

centrifugally operable stop motion. actuating;

plunger: I25 is: mounted: for: longitudinalysliding; movement, this plunger; I25 being. adapted to. movesubstantially;alonga;radius:of-thertable-ZU.

The. detent I06" will then move into operative position so that upon" .zontal or inoperative position.

This plunger I25 also hasa reduced outer end portion I26 integral therewith which slidably,

penetrates an upturned lip portion I2'I integral with the plate or base portion I2I.

. A latch or yarn tail clamping member broadly designated at I30 is pivotally mounted on opposed ends of a pivot pin I3I which extends through "the tubular portion I23 of the bracket I20 and serves to restrict movement of the plunger I25 towards the axis of the table 20. This yarn tail clamping member I30 has a longitudinally extending-blade portion I32 integral therewith to the upper surface of which a leaf spring clamping 'member I33 is suitably secured, as by rivets I34. v It will be noted that the free end of the leaf spring member I 33 is turned upwardly or away from the blade I32, as at I35, to facilitate the ingress of j The medial portion of the blade I32 has a down-turned latch portion I36 integral therewith which is adapted to engage the outer end of the enlarged portion I24 of the plunger I25 at its juncture with the reduced portion I26. jThe tubular portion I23 of the bracket I20 has an opening or passageway I31 which is loosely penetrated by the projection I36 when the'blade "I32 of the clamping member I30 assumes a hori- However, upon the yarn being substantially exhausted from the associated cone or tube 40, the upward pull of the yarn Wwill cause the yarn clamping member I30 to swing upwardly substantially as shown in Figure 13 and, due to rotation of the table 20, centrifugal force will cause the reduced porthrough centrifugal force, it will engage the finger v33 of the corresponding intermediate or auxiliary stop motion actuating device 80 to 'cause the same to operate in the manner heretofore described for stopping the knitting machine. j

It is thus seen that I have provided an improved means for effecting operation of the conventional stop motion of a knitting machine upon the yarn from any one .of the tubes 40being exhausted and which includes means for clamp-. .ingly holding the yarn to prevent the same from being withdrawn through the conventional ten- 'sion devices such as the tension levers 25. This,

-' of course, saves considerable time in the replacing of empty tubes 40 with filled tubes of yarnas well as providing a positively actuated means for stopping the knitting machine upon the exhaustion of yarn from any one of the tubes '40. The present apparatus is also relatively simple in construction and thus may be economically "manufactured and requires a minimum of modifications of the existing parts of the knitting machine. Asa matter of fact, the second form of the invention shown in'Figures 10, 11, 12 and .13 does not require any modification whatsoeverfto be made in the knitting machine.

In the drawings and specification there has been set forth a preferred embodiment of the invention and although specific termsare' employed, they are used in a generic and descriptive tion I26 ofjthe plunger I25 tomove outwardly to] occupy substantially the position shown ,in

10 sense only and not for purposes of limitation, the scope of the invention being defined in the claims. 'I

I claim:

1. In a knitting machine having a revolving wrap stripe mecanism including a rotatable table supported by the revolving wrap stripe mechanism, said table having mounted on the upper side thereof a plurality of upstanding circularly spaced stops for holding yarn cones filled with wrap yarn, a vertically movable yarn clamping means disposed adjacent each of said stobs" and adapted to secure the tail of the yarn on the corresponding cone, a movable plunger carried bythe table in association with each of said yarn clamping means, means on the yarn clamping means for normally preventing movement of the correspondingplunger, stop motion actuating mechanism located adjacent the revolting wrap stripe mechanism and 'means on'the stop motion actuating mechanism engageable by said plungers upon the plungers moving outwardly from said table and means on said clamping means causing the plunger associated therewith to move outwardly from said table upon substantial exhaustion of the yarn from one of the yarn cones. v I

2. In a knitting machine having a revolving wrap stripe mechanism including a rotatable table having a plurality of circularly spaced stobs thereon for holding yarn cones filled with wrap yarn, movable yarn clamping means associated with each of said stobs for clamping the tails of yarn on said cone, a movable plunger carried by said rotatable table in association with eachof said movable yarn clamping means, said yarn clamping means having means thereon normally preventing movement of the corresponding plunger, exhaustion of the yarn from anyof said cones causing movement of'said corresponding movable yarn clamping means to release said corresponding plunger, said plunger being adapted to move outwardlyfromsaid table by centrifugal force upon releasethereof, intermediate stop motion actuating mechanism disposed adjacent the revolving Wrap stripe mechanism and said plungers being adapted to actuate said intermediate stop motion actuating mechanism to stop the knitting machine upon exhaustion of yarn from one of said cones.

J 3.-In a knitting machine having a stop motion and having wrap stripe means for holding a plurality of cones of wrap stripe yarn thereon,

the member for holding the cones being adapted to be revolved in time relation ,to the cylinderof theknitting machine, said machine also having means for holding said cones, centrifugal-1y "op erable means for effecting operation ofthe' stop motion comprising a movable plunger disposed ,pivot'e'd latch member to swin in one direction to release the corresponding plunger, rotation of the means for. holding the plurality of cones causing said plunger to be thrown outwardly witnrespect thereto and means engageable by saidpiunger for efiectingoperation ofsaidstop motion.

4. In a knittingmachine having a stop motion and having wrap. stripe means for homing; a plurality of cones of wrap stripe yarn thereon,

the means for holding the cones being adapted to .beirevolved in timed relation to the cylinder f1 ofi th'e knittin machine, said machine also hav- 'Iing-,means for. holding said cones. .centrifugally fope'rable. means for effecting, operationofthe lstoiimotion comprising a movable plunger dispose'd adjacent each ofjnthe means for holding lllfof forfactuatingsaidi sto imofionersaia hecones, 'af pivoted latchmember disposed ad-' ac'nt'each of the means for holding the cones diha'vinglmeans thereon normally limiting 'oyfement of the corresponding p1unger, means by said sagas; upon .oiitwaidlmovemenifltherei tingwinachine, usaid intermediate ic jactua'ting' ..mechanisml compr s n -gen .arm, I .gageabl'e.,byisaid"plunger, a, .cammeiinreapon ne 1 end, flsaid' a m; @f'mbv'abl,pistoriadapted' td be on the pivoted latch member for securinga tail, Jiaiztiiat'e'd by .said .icfam,'.' and said pistonhavingfa :bi' yarn, from the corresponding cone of yarn ftlieretmvkhereby upon the yarn being exhausted from any onejof said cones, the tail thereof will "cause the pivotedilatchmember vto svvin'g in one I irectionjfor'releasing the corresponding plunger, iotationofth'e means forholding the plurality .o'fcones causing said plunger to'be moved'a'way t erefrom, means engageable by said plunger for effecting operation of the stop motion, said pivp., 2o "v'ijdedvvith morality or spaced "stobsth 1 wire seemed ,thereto .Lfor'li actuating said 'stop vmtibfilc i 7; In a. circular knitting .machine ,haying a ,ii'zi'a'fi stri head i ludinga frot' yijjt'ab' proadapted tofeceive cones of Wrap yarn,,.said knitting mach lsof having a stop motion'for'stopring r egsaine; improved rnea'ns .jfci j actuatin I said stop motion upon exhaustion of the wrap oted latch" member including a pivoted arm, i,2 yarfilfromone of said wrap 'y 'nj 116 pris- [means pivotally supporting the pivoted arm on the table, a leaf spring member secured at one end thereof to the pivoted arm and normally lbeari'ng against the pivoted arm whereby ataii 1 iiio'g iintleri'nediate.. stop .motion actuating means disposed on said machine adjacent the periphery ,I of. 'saidwrap stripe headincluding 'a wire conn'ected at "one, end to the stop. motion, a cylinder t em the associated cone of yarn may be inserted 5 v g a. movable ,pi fiO the ,S id wire bein "between the leaf sprin member in said arm for clarnpingly securing the same thereto.

5. Ina circular knitting machine having a rap stripe head including a rotary table pro- 1 rs thereon for holding cones of Wrap yarn; said knitting machinefalso having 'a stop motion, ja'nsfor actuating said stop motion upon't'he arn' in any ne of said cones being exhausted connected: at its"other'end,to the saidpiston, cam means formovi ng said'piston, an arm conhec tedito, said cam means, said rotary table hav- ,,'in'g.'means therein adapted to engage said am:

vi'ded with a plurality of spaced yarn cone hold- 3 i actuatiiig said/intermediate .st m i .t'uating means, land' said means on the. said rotary Htable" comprising a? movable; plunger associated Q' ivithfeach, of said i'st'ob's, latch means normally holding said plunger v out er engagement" with cio'mprising a yarn clamping member pivotally ifie a i l latch m sh sm he? secured to said tz'rble' adjacent each of said yarn 'f'cone holders said'yarn clamping members Havrig means thereon for clamping tails of yarn "Tfroin'said cones therein, said table having a ra jcnfor clampingly engaging the tail end ofthe yarn on the associatedpone,wherebyeXhaustion of the yarnjo'njsaid, cone will cause movement 'of'f'saidf latch' means" to. permit "said plungeruto "di'ally extending bore therein adjacent each of i sese" saidarrriferiactliatinseeid top ti 'ls'a'id yarn cone holders, a plunger slidably mount ed in each of said bores, each of said yarn clampf ing rnernbers having latch means thereon adapted 'to hold said corresponding plunger within 4 said bore upon a full cone of yarn being pos'i- 5 tioned on said yarn cone holder, exhaustion of the yarn on said yarn cone causing pivotal movement 'of said yarn clamping member to release ,isaidlatch means to cause said plunger to move I'outwardly'from said table by centrifugal force, v

intermediate stop motion actuating means eraag'eable by said plungers upon outward mavenien't thereof for actuating said stop motion of "said knitting machine.

6. In a circular knitting machine having a wrap stripe head including a rotary table provid-" efd xvith a plurality of spaced'yarn cone holders thereon'for holding cones of wrap yarn, said knitftingi machine alsohaving a stop motion, means clamping, member'havmwarch means'theron 'ffiormally engaging saidplufl gel' to limit itsolitthe inovement from .said table and" actuating means on the stop, motion actuating'mecha I .ldis 'osed immediatelyadjacent thejliefib iy'or any one of said cones being exhausted com-" prising a yarn clamping member pivotally se- "icure'd to said table adjacent each of said yarn cone helder's, saidyarn clamping members haviiior ivsaid conestherein, said table having'a 'rallygextending bore therein adjacenteach. of T and yarnfconeholders, 'aplunger sl'idablymou'nt- I ed ineach "of .said bores,.eachof,,said yarn'clampstantiallyexhausted. from an adjacent cona the tail'therecf will ,be pulledupvvardlyto swing the yarn clamping memberjinfa likefdirectio cease the latch. means 7 thereof ,to', ,re leasethe rig vmeams thereon for clamping tails of yarn plunger thereby permitting theplungerto moye outwardly .toengage saidiac'tuating means forjthe stop .motion. actuating mechanism; for; stopping it-he machiile. i i V iv Q9; 111 a; circular knitting,machineshaving a "ing members having latch means'th'ereonadaptstripeheadllineludingf a. rotary 'vtabllprd vided with a plurality of spaced yarn cone holders thereon for holding cones of wrap yarn, said knitting machine also having a stop motion adjacent the periphery of the table, an improved stop motion control device comprising a bracket secured to the upper surface of said table adjacent each of said yarn cone holders and having a plunger mounted for movement therein substantially radially of the axis of said table,

a pivoted clamping member pivotally connected 10 to the bracket and having means thereon for anchoring the tail of yarn from the corresponding cone thereto, said pivoted clamping member having latch means thereon normally engaging the plunger to limit its outward movement which 15 may be imparted thereto by centrifugal force,

intermediate stop motion-actuating mechanisms disposed immediately adjacent the periphery of said table and engageable by said plunger upon outward movement thereof, whereby, upon the yarn being substantially exhausted from a cone, the tail thereof will be pulled upwardly to swing the yarn clamping member in a like direction to cause the latch means thereof to release the plunger thereby permitting centrifugal force to throw the plunger outwardly to engage said intermediate stop motion actuating means for stopping the machine.

WILLIAM C. TUCKER.

as No references cited. 

